mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-03 16:39:00 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Merged revisions 77535 via svnmerge from

Browse source 
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r77535 | mark.dickinson | 2010-01-16 18:10:25 +0000 (Sat, 16 Jan 2010) | 21 lines

  Merged revisions 77519,77530,77533 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r77519 | mark.dickinson | 2010-01-16 10:44:00 +0000 (Sat, 16 Jan 2010) | 5 lines

    Issue #7632: Fix a serious wrong output bug for string -> float conversion.
    Also remove some now unused variables, and add comments clarifying the
    possible outputs of the parsing section of _Py_dg_strtod.  Thanks
    Eric Smith for reviewing.
  ........
    r77530 | mark.dickinson | 2010-01-16 17:57:49 +0000 (Sat, 16 Jan 2010) | 3 lines

    Issue #7632: Fix one more case of incorrect rounding for str -> float
    conversion (see bug 5 in the issue tracker).
  ........
    r77533 | mark.dickinson | 2010-01-16 18:06:17 +0000 (Sat, 16 Jan 2010) | 1 line

    Fix multiple uses of variable 'L' in _Py_dg_strtod, where one use requires an unsigned long and the other a signed long.  See also r77421.
  ........
................
This commit is contained in:
Mark Dickinson 2010-01-16 18:12:46 +00:00
parent 27f9eaa62f
commit 11f657843f
3 changed files with 100 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

11
Lib/test/test_strtod.py
View file

@ -123,10 +123,6 @@ class StrtodTests(unittest.TestCase):
digits = m * 5**-e
exponent = e
s = '{}e{}'.format(digits, exponent)
# for the moment, ignore errors from trailing zeros
if digits % 10 == 0:
continue
self.check_strtod(s)
# get expected answer via struct, to triple check
@ -175,7 +171,8 @@ class StrtodTests(unittest.TestCase):
self.check_strtod(s)
def test_parsing(self):
digits = tuple(map(str, range(10)))
# make '0' more likely to be chosen than other digits
digits = '000000123456789'
signs = ('+', '-', '')
# put together random short valid strings
@ -257,7 +254,9 @@ class StrtodTests(unittest.TestCase):
'247032822920623295e-341',
# issue 7632 bug 5: the following 2 strings convert differently
'1000000000000000000000000000000000000000e-16',
#'10000000000000000000000000000000000000000e-17',
'10000000000000000000000000000000000000000e-17',
# issue 7632 bug 8: the following produced 10.0
'10.900000000000000012345678912345678912345',
]
for s in test_strings:
self.check_strtod(s)